He had been accused of assaulting a British man and breaking his leg, an injury that reportedly forced the man to quit his job.

Mr Kralik, who lived and worked in the UK, heard that he had apparently beaten a man in July 2014 – and that police had two witnesses and CCTV camera footage to prove it.

But when the court date eventually arrived, the footage did not show the alleged victim being injured, and showed that a female, who claimed to have witnessed the fight, was in a position where she could not have physically seen anything.

Josef Kralik was at Birmingham airport when a policeman with a machine gun approached him and asked him to go with him (Picture: Getty)

The incident took place when Mr Kralik went to unload his truck but stopped at the wrong place and had tried to ask for directions.

He was approached by the owner of the nearby cafe, who he claims berated him because he was a foreigner.

According to Mr Kralik’s version he only told the man to stop swearing at him and, when he kept shouting, caught him and put him on the ground.